As far the oil, I used seed oil for environmental purposes, but it was only for my personal use. In fact I put a caution note at the cover telling 'Use qualified transformer oil'.
The purpose was to know how electromagnetic waves e.g. one from electric blanket gives influences to human body. For example the commercial power line emits electromagnetic waves, 50Hz or 60Hz here, and this wave gives electric vibration to our body. We can detect this influence when we see our body with a precision current detector and oscilloscope connected to it.
After giving such external loads to the body, can we see any evidence of medical stresses in body? that was our study. I knew that sort of this study was done some decades before we have tried, but the method of ours was a tad different to the past examples. We tried to detect the body in a holistic manner, by detecting the subtle signals given from many and specific spots on the skin of the body.
Glad to know you were interested in this, thanks.